Sivers Semiconductors has developed the STAMPEDE2731, an 8-channel Ka-band transmit beamforming front-end integrated circuit designed for phased-array antennas in satellite communications ground terminals. The device operates over the 27.5 - 31 GHz uplink frequency range and is fabricated using RF Silicon-on-Insulator (RF-SOI) technology to support high-frequency integration and array scalability.
The STAMPEDE2731 integrates eight transmit channels with dual-polarization capability, implemented as four channels per polarization. The IC supports two independent and reconfigurable beam directions, enabling simultaneous beam operation within electronically steered antenna systems. Phase control is provided through 6-bit phase shifters offering full 360-degree coverage for accurate beam steering.
The device is designed to address uplink requirements for ground-based SATCOM terminals, emphasizing linear output power and power efficiency. It includes ultra-low leakage current in standby mode and reduced power consumption during active operation. On-chip beam table memory allows predefined beam states to be stored locally, supporting fast beam switching through a high-speed SPI interface.
This 8-channel Ka-band BMIC incorporates extensive on-chip temperature and power sensing to support operational monitoring and thermal management in dense antenna arrays. These features allow system-level control logic to track device conditions during transmission and adapt operating parameters as required. The IC is supplied in a chip-scale package compatible with standard, low-cost PCB manufacturing processes. Multiple chip-addressing modes enable coordinated control of multiple devices, supporting implementation in large-scale phased-array architectures with high element counts.
The STAMPEDE2731 is intended for Ka-band satellite communications uplink systems, including electronically steered ground terminals and scalable phased-array antenna platforms. Its integration level and beam control capabilities support multi-beam SATCOM architectures requiring precise phase control, efficient power usage, and synchronized operation across multiple transmit elements.
Sivers Semiconductors is at the SATShow in Washington DC this week. Stop by their booth to learn more about the company and their product portfolio.
